CN114769594A - Electric arc 3D printing apparatus of aluminum alloy structure spare - Google Patents

Electric arc 3D printing apparatus of aluminum alloy structure spare Download PDF

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Publication number
CN114769594A
CN114769594A CN202210609523.0A CN202210609523A CN114769594A CN 114769594 A CN114769594 A CN 114769594A CN 202210609523 A CN202210609523 A CN 202210609523A CN 114769594 A CN114769594 A CN 114769594A
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groove
wall
printing
arc
aluminum alloy
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CN202210609523.0A
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CN114769594B (en
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谢大权
马桂殿
陈惟龙
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Nanjing Chenglian Laser Technology Co Ltd
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Nanjing Chenglian Laser Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/04—Welding for other purposes than joining, e.g. built-up welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/095—Monitoring or automatic control of welding parameters
    • B23K9/0953—Monitoring or automatic control of welding parameters using computing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
    • B22F2003/1051—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding by electric discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

The invention relates to arc 3D printing equipment for an aluminum alloy structural part, which belongs to the technical field of arc 3D printing and comprises an engine body, wherein a working groove is formed in the engine body, a turntable is arranged at the top of the working groove, and a support is arranged at one end of the top of the turntable. The invention solves the problems that the control mechanism of the welding gun is very complex, the maintenance is difficult and the accuracy is reduced due to the easily accumulated errors and the control accuracy and the sensitivity are poor because the welding gun needs to be simultaneously controlled to linearly move in the transverse direction, the vertical direction or the transverse direction, the vertical direction and the longitudinal direction of the existing electric arc additive manufacturing equipment; the friction layer controls the rotation of the turntable to adjust the position of the printing nozzle, so that the printing nozzle is more sensitive and efficient.

Description

Electric arc 3D printing apparatus of aluminum alloy structure spare
The technical field is as follows:
the invention belongs to the technical field of arc 3D printing, and particularly relates to arc 3D printing equipment for an aluminum alloy structural member.
Background art:
the aluminum alloy is a non-ferrous metal structural material which is most widely applied in industry, and is widely applied in the fields of aviation, aerospace, automobiles, mechanical manufacturing, ships and the like, particularly, scientific technology and industrial economy are rapidly developed in recent years, the demand on aluminum alloy welding components is increased day by day, the aluminum alloy is increasingly deeply researched, the arc additive manufacturing adopts a layer-by-layer overlaying welding mode to manufacture a compact metal solid component, and the rapid forming technology for manufacturing solid components by adopting a material layer-by-layer superposition method is driven by three-dimensional data of components because an arc is used as an energy-carrying beam, has high heat input and high forming speed and is suitable for large-size complex components, and has low manufacturing cost and high efficiency The method has wide application prospect in the fields of micro-nano manufacturing and the like;
metal additive manufacturing techniques can be classified into three categories according to the type of heat source: laser, electron beam and electric arc, the powder-based metal additive manufacturing technology using laser and electron beam as heat source has been studied mainly in the past 20 years, but because of the characteristics of raw materials and heat source, the metal powder-based laser and electron beam additive manufacturing technology is limited to a certain extent when forming certain specific structures and cannot be realized or even if forming can be performed, the raw material and time costs are high;
the existing technology shows certain limitation when forming complex structural members, in order to meet the material increase manufacturing requirements of large-scale and integrated aerospace structural members, the low-cost and high-efficiency electric arc material increase manufacturing technology developed based on the surfacing technology is gradually concerned, at present, a plurality of scientific research institutions at home and abroad carry out related research on the electric arc material increase manufacturing technology, and research institutions such as Germany Frounhofu laser technology research institute, American southern health institute university, British Claifield university and the like carry out related research on the forming capability and the organizational performance of the geometrical shape of the electric arc material increase manufacturing technology, and some domestic scientific research institutes and colleges also carry out research on the electric arc material increase manufacturing technology;
however, in the existing electric arc additive manufacturing equipment, the welding gun needs to be controlled to linearly move in the transverse direction, the vertical direction or the transverse direction, the vertical direction and the longitudinal direction at the same time, so that a control mechanism of the welding gun is very complex, the welding gun is not easy to maintain, errors are easy to accumulate, the precision is reduced, and the control precision and the sensitivity are poor, so that the electric arc 3D printing equipment for the aluminum alloy structural part is provided.
The invention content is as follows:
the invention provides arc 3D printing equipment for an aluminum alloy structural part, and aims to solve the problems that in existing arc additive manufacturing equipment, a welding gun needs to be controlled to linearly move in the transverse direction, the vertical direction or the transverse direction, the vertical direction and the longitudinal direction at the same time, so that a control mechanism of the welding gun is very complex, the welding gun is not easy to maintain, errors are easy to accumulate, the precision is reduced, and the control precision and the sensitivity are poor.
The invention provides arc 3D printing equipment for an aluminum alloy structural member, which comprises a machine body, wherein a working groove is formed in the machine body, and a turntable is arranged at the top of the working groove;
a support is arranged at one end of the top of the rotary table, a control cross frame is fixedly connected to the top of the support, a sliding frame is arranged at the top of the control cross frame, a connecting frame is arranged on one side of the sliding frame, a printing spray head is arranged at the bottom of the connecting frame, and a stabilizing slide block is arranged on the outer side of the middle part of the printing spray head;
a sliding groove is formed in one end of the rotary table, and the inner wall of the sliding groove is connected with the outer side of the stabilizing sliding block in a sliding mode;
the outer side of the turntable is provided with a rotating mechanism, the bottom of the working groove is provided with an object bearing mechanism, and the bottom of the control cross frame is connected with the outer side of the top of the machine body in a sliding mode.
Furthermore, the rotating mechanism comprises a friction ring, a rotating cavity, a rotating roller, a friction layer, a second stepping motor and a stable rotating groove, the second stepping motor is arranged on the inner side of the top of the machine body, and the rotating roller is arranged at the power output end of the second stepping motor;
the inner wall of the top of the working groove is provided with a stable rotating groove, one side of the inner wall of the stable rotating groove is provided with a rotating cavity, the inner side of the rotating cavity is movably connected with the top of the rotating roller, the outer side of the rotating roller is provided with a friction layer, the outer side of the rotary disc is provided with a friction ring, and the outer side of the friction ring is in friction connection with the outer side of the friction layer.
By adopting the above scheme, slewing mechanism passes through two control live rollers of step motor, the frictional layer rotates, and the frictional layer passes through frictional force drive friction ring and rotates to the rotation of control carousel, carousel drive control crossbearer, carriage and link rotate, and then the adjustment prints the relative position of shower nozzle and printing platform, thereby accomplishes the rotation angle that the shower nozzle was printed in accurate adjustment.
Furthermore, the inner wall of the stable rotating groove is movably connected with the outer side of the rotating disc.
Through adopting above-mentioned scheme, the stable groove of rotating makes the rotation of stabilizing the carousel to the angle of stable adjustment control crossbearer.
Furthermore, a closed ring is respectively arranged on the outer side of the top and the outer side of the bottom of the rotary table, and one side of the closed ring is movably connected with the inner wall of the top of the working groove.
By adopting the above scheme, the closed ring is used for closing one side of the stable rotating groove, so that dust is prevented from entering the inner cavity of the rotating cavity and the stable rotating groove.
Furthermore, a limiting groove is formed in the inner wall of the sliding groove, a limiting block is arranged on the outer side of the stabilizing sliding block, and the inner wall of the limiting groove is connected with the outer side of the limiting block in a sliding mode.
By adopting the scheme, the limiting groove and the limiting block enable the printing nozzle to move more stably, so that the equipment can stably print out products.
Furthermore, the object bearing mechanism comprises a base, a supporting platform, a collecting shell and a printing table, a plurality of electric cylinders are uniformly arranged on the inner side of the bottom of the machine body, the bottom of the working groove is provided with the base, and the tops of the electric cylinders are fixedly connected with the bottom of the base;
the utility model discloses a printing machine, including base, slideway groove, inner bottom wall of slideway groove, servo motor's power take off end fixedly connected with control lead screw, the outside of control lead screw and supporting platform's inboard threaded connection, the outside at supporting platform top is provided with collects the shell, supporting platform's top is provided with the printing table, one side of organism is provided with the bearing platform, the outside swing joint of one side and collection shell of bearing platform.
Through adopting above-mentioned scheme, the electric cylinder is used for the removal of stable control and base to supplementary adjustment of accomplishing supporting platform and print table height, in order to accomplish print job, remove wheel and slide cooperation and make the inner chamber in the slide groove removal that supporting platform is stable smooth, collect the gap between shell and the print table and be used for collecting and temporarily deposit granule, the dust that produces in the printing process.
Furthermore, a plurality of buffer springs are uniformly arranged at the bottom of the base, and the bottom ends of the buffer springs are fixedly connected with the inner bottom wall of the working groove.
Through adopting above-mentioned scheme, buffer spring is used for making the removal of base gentler, reduces the base and removes the impact that the in-process produced the inner wall of link, reduces the wearing and tearing of mechanism to the life of extension equipment.
Further, the top of the machine body is provided with a position detection mechanism, the position detection mechanism comprises a resistance wire, a connecting contact, a power supply, a current detection module and a connecting lead, the top of the machine body is provided with a resistance wire, the bottom of one end of the control cross frame is provided with the connecting contact, the bottom of the connecting contact is movably connected with the top of the resistance wire, the resistance wire is a notched ring resistor, the resistance wire is a resistor with uniform resistivity distribution, the inner side of the control cross frame is provided with the power supply, the current detection module and the connecting lead, the connecting contact is connected with the power supply, the power supply and the current detection module, the current detection module and the resistance wire in series through the connecting lead, the power supply is a battery with the voltage of 6V, and the current detection module is ZH-42123 in model.
By adopting the scheme, when the connecting contact moves relative to the resistance wire, the loop resistance formed by the connecting contact, the resistance wire, the connecting lead and the power supply is constantly changed, the current detected by the current detection module is changed accordingly, the relative position of the resistance wire and the connecting contact can be determined according to the change rule, and then the angle parameter for controlling the rotation of the cross frame is obtained, so that the position change parameter of the printing nozzle is determined.
Further, the inboard of control crossbearer one end is provided with step motor one, step motor one's power take off end is provided with the position control lead screw, the outside of position control lead screw and the inboard threaded connection of connecting block, the position control lead screw is located the inboard of removing the spout, the removal spout has been seted up to one side of control crossbearer, one side of carriage is provided with the connecting block, remove the inner wall of spout and the outside sliding connection of connecting block, the inboard of connecting block and the outside threaded connection of position control lead screw.
Through adopting above-mentioned scheme, step motor one drives the position control lead screw and rotates to accurate control connecting block and carriage remove, change the relative position of carriage and control crossbearer, the carriage drives the link and removes, makes the position of link and sliding tray change, and the link drives and prints shower nozzle, stabilizes the slider and remove along the inner wall of sliding tray.
Compared with the prior art, the technical scheme of the invention has the following beneficial technical effects:
1. according to the invention, through the use of the turntable, the control transverse frame, the stepping motor I, the position control screw rod, the sliding frame and the connecting frame, the relative position of the printing nozzle and the printing table in the horizontal direction is efficiently and accurately adjusted, the structure is simpler, and the maintenance is easy;
the friction layer controls the rotation of the turntable to adjust the position of the printing nozzle, so that the printing nozzle is more sensitive and efficient;
the heights of the base, the supporting platform and the printing table are controlled and adjusted through the use of the electric cylinder, so that the height of a product being printed by the printing table is adjusted, and a printing nozzle is assisted to quickly and accurately print a final product;
2. according to the invention, through the use of a loop formed by the connecting contact point, the resistance wire, the connecting lead and the power supply, the current detection module detects the current change of the loop, the relative position of the resistance wire and the connecting contact point can be determined according to the change rule, and further the angle parameter for controlling the rotation of the cross frame is obtained, so that the position change parameter of the printing spray head is determined, the whole detection process is accurate, reliable and efficient, and no error accumulation is generated.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Description of the drawings:
the accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic cross-sectional front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is an enlarged partial view of portion A of FIG. 2;
FIG. 4 is a partial enlarged view of portion B of FIG. 1 according to the present invention;
FIG. 5 is an enlarged partial view of the portion C of FIG. 1;
FIG. 6 is a schematic diagram of the positional relationship of the resistance wire, the connecting contacts, the power supply, the current detection module and the connecting wires of the present invention.
Reference numerals: 1. a body; 2. a resistance wire; 3. a closed loop; 4. a turntable; 5. controlling the transverse frame; 6. a servo motor; 7. controlling the screw rod; 8. a first stepping motor; 9. a position control screw rod; 10. a carriage; 11. a connecting frame; 12. a sliding groove; 13. connecting the contacts; 14. collecting shells; 15. a base; 16. a slideway; 17. a receiving table; 18. a rotation chamber; 19. a rotating roller; 20. a friction layer; 21. a second stepping motor; 22. a working groove; 23. an electric cylinder; 24. a buffer spring; 25. a support platform; 26. a moving wheel; 27. a chute; 28. stabilizing the slideway; 29. a printing table; 30. a friction ring; 31. a stable rotation groove; 32. printing a spray head; 33. stabilizing the slide block; 34. a moving chute; 35. connecting blocks; 36. a stabilizing wheel; 37. a power source; 38. a current detection module; 39. and connecting the lead.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the specific embodiments of the present invention. Like reference numerals in the drawings denote like elements. It should be noted that the described embodiments are part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without inventive step, are within the scope of protection of the invention.
As shown in fig. 1-6, the invention provides an arc 3D printing apparatus for an aluminum alloy structural member, which includes a machine body 1, wherein a working groove 22 is formed in the machine body 1, and a turntable 4 is arranged at the top of the working groove 22;
a support is arranged at one end of the top of the rotary table 4, a control transverse frame 5 is fixedly connected to the top of the support, a sliding frame 10 is arranged at the top of the control transverse frame 5, a connecting frame 11 is arranged on one side of the sliding frame 10, a printing spray head 32 is arranged at the bottom of the connecting frame 11, and a stabilizing slide block 33 is arranged on the outer side of the middle part of the printing spray head 32;
a sliding groove 12 is formed in one end of the turntable 4, and the inner wall of the sliding groove 12 is connected with the outer side of the stabilizing sliding block 33 in a sliding manner;
a rotating mechanism is arranged on the outer side of the turntable 4, an object bearing mechanism is arranged at the bottom of the working groove 22, and the bottom of the control cross frame 5 is connected with the outer side of the top of the machine body 1 in a sliding manner;
the rotating mechanism comprises a friction ring 30, a rotating cavity 18, a rotating roller 19, a friction layer 20, a second stepping motor 21 and a stable rotating groove 31, the second stepping motor 21 is arranged on the inner side of the top of the machine body 1, and the rotating roller 19 is arranged at the power output end of the second stepping motor 21;
the inner wall of the top of the working groove 22 is provided with a stable rotating groove 31, one side of the inner wall of the stable rotating groove 31 is provided with a rotating cavity 18, the inner side of the rotating cavity 18 is movably connected with the top of a rotating roller 19, the outer side of the rotating roller 19 is provided with a friction layer 20, the outer side of the rotating disc 4 is provided with a friction ring 30, and the outer side of the friction ring 30 is in friction connection with the outer side of the friction layer 20; the rotating mechanism controls the rotating roller 19 and the friction layer 20 to rotate through the second stepping motor 21, the friction layer 20 drives the friction ring 30 to rotate through friction force, so that the rotation of the turntable 4 is controlled, the turntable 4 drives the control cross frame 5, the sliding frame 10 and the connecting frame 11 to rotate, the relative position of the printing spray head 32 and the printing table 29 is adjusted, and the rotation angle of the printing spray head 32 is accurately adjusted;
the inner wall of the stable rotating groove 31 is movably connected with the outer side of the rotating disc 4; the stable rotation groove 31 enables the stable rotation disc 4 to rotate, thereby stably adjusting and controlling the angle of the transverse frame 5;
the outer side of the top and the outer side of the bottom of the turntable 4 are respectively provided with a closed ring 3, and one side of the closed ring 3 is movably connected with the inner wall of the top of the working groove 22;
the closed ring 3 is used for closing one side of the stable rotation groove 31 to prevent dust from entering the inner cavities of the rotation cavity 18 and the stable rotation groove 31; a limiting groove is formed in the inner wall of the sliding groove 12, a limiting block is arranged on the outer side of the stabilizing sliding block 33, and the inner wall of the limiting groove is connected with the outer side of the limiting block in a sliding mode; the limiting groove and the limiting block enable the printing nozzle 32 to move more stably, so that the equipment can print products stably;
the object bearing mechanism comprises a base 15, a supporting platform 25, a collecting shell 14 and a printing table 29, wherein a plurality of electric cylinders 23 are uniformly arranged on the inner side of the bottom of the machine body 1, the base 15 is arranged at the bottom of the working groove 22, and the tops of the electric cylinders 23 are fixedly connected with the bottom of the base 15;
a slide channel 27 is formed in the top of the base 15, a plurality of slides 16 are arranged on the inner bottom wall of the slide channel 27, a supporting platform 25 is connected to the inner wall of the slide channel 27 in a sliding manner, a plurality of moving wheels 26 are arranged at the bottom of the supporting platform 25, the inner wall of each slide 16 is movably connected with the outer side of each moving wheel 26, a servo motor 6 is arranged on the inner side of one end of the base 15, a control lead screw 7 is fixedly connected to the power output end of the servo motor 6, the outer side of the control lead screw 7 is in threaded connection with the inner side of the supporting platform 25, a collecting shell 14 is arranged on the outer side of the top of the supporting platform 25, a printing platform 29 is arranged on the top of the supporting platform 25, a receiving platform 17 is arranged on one side of the machine body 1, and one side of the receiving platform 17 is movably connected with the outer side of the collecting shell 14; the electric cylinder 23 is used for stably controlling and moving the base 15 so as to assist in adjusting the heights of the supporting platform 25 and the printing table 29 to complete the printing work, the moving wheel 26 and the slideway 16 are matched to enable the supporting platform 25 to stably and smoothly move in the inner cavity of the slideway slot 27, and a gap between the collecting shell 14 and the printing table 29 is used for collecting and temporarily storing particles and dust generated in the printing process;
a plurality of buffer springs 24 are uniformly arranged at the bottom of the base 15, and the bottom ends of the buffer springs 24 are fixedly connected with the inner bottom wall of the working groove 22; the buffer spring 24 is used for enabling the base 15 to move more smoothly, reducing the impact of the base 15 on the inner wall of the connecting frame 11 in the moving process and reducing the abrasion of the mechanism, thereby prolonging the service life of the equipment;
the top of the machine body 1 is provided with a position detection mechanism, the position detection mechanism comprises a resistance wire 2, a connecting contact 13, a power supply 37, a current detection module 38 and a connecting lead 39, the top of the machine body 1 is provided with a resistance wire 2, the bottom of one end of the control cross frame 5 is provided with a connecting contact 13, the bottom of the connecting contact 13 is movably connected with the top of the resistance wire 2, the resistance wire 2 is a notched circular resistor, the resistance wire 2 is a resistance with uniform resistivity distribution, the inner side of the control cross frame 5 is provided with a power supply 37, a current detection module 38 and a connecting wire 39, the connecting contact 13 and the power supply 37, the power supply 37 and the current detection module 38, and the current detection module 38 and the resistance wire 2 are all connected in series through a connecting lead 39, the power supply 37 is a battery with the voltage of 6V, and the model of the current detection module 38 is ZH-42123; when the connecting contact 13 moves relative to the resistance wire 2, the resistance of a loop formed by the connecting contact 13, the resistance wire 2, the connecting lead 39 and the power supply 37 changes continuously, the current detected by the current detection module 38 changes accordingly, the relative position of the resistance wire 2 and the connecting contact 13 can be determined according to the change rule, and then the angle parameter for controlling the rotation of the cross frame 5 is obtained, so that the position change parameter of the printing spray head 32 is determined;
a first stepping motor 8 is arranged on the inner side of one end of the control cross frame 5, a position control screw rod 9 is arranged at the power output end of the first stepping motor 8, the outer side of the position control screw rod 9 is in threaded connection with the inner side of a connecting block 35, the position control screw rod 9 is positioned on the inner side of a movable sliding groove 34, the movable sliding groove 34 is formed in one side of the control cross frame 5, the connecting block 35 is arranged on one side of the sliding frame 10, the inner wall of the movable sliding groove 34 is in sliding connection with the outer side of the connecting block 35, and the inner side of the connecting block 35 is in threaded connection with the outer side of the position control screw rod 9; the first stepping motor 8 drives the position control screw rod 9 to rotate, so that the connecting block 35 and the sliding frame 10 are accurately controlled to move, the relative position of the sliding frame 10 and the control cross frame 5 is changed, the sliding frame 10 drives the connecting frame 11 to move, the positions of the connecting frame 11 and the sliding groove 12 are changed, and the connecting frame 11 drives the printing spray head 32 and the stabilizing slide block 33 to move along the inner wall of the sliding groove 12.
The implementation mode specifically comprises the following steps: the second stepping motor 21 controls the rotating roller 19 to rotate, the roller 19 drives the friction layer 20 to rotate, the friction layer 20 drives the friction ring 30 to rotate through friction force, the friction ring 30 drives the turntable 4 to rotate, so that the rotation of the turntable 4 is controlled, the turntable 4 drives the control cross frame 5, the sliding frame 10 and the connecting frame 11 to rotate, the relative position of the printing nozzle 32 and the printing table 29 is further adjusted, and the rotation angle of the printing nozzle 32 is accurately adjusted;
when the connecting contact 13 moves relative to the resistance wire 2, the connecting contact 13 is formed by the resistance wire 2, the connecting lead 39 and the power supply 37The loop resistance of (2) is changed continuously, the current detected by the current detection module 38 is changed therewith, the relative position of the resistance wire 2 and the connecting contact 13 can be determined according to the change rule, and then the angle parameter for controlling the rotation of the cross frame 5 is obtained, so as to determine the position change parameter of the printing nozzle 32, wherein:
Figure BDA0003671524720000121
namely:
Figure BDA0003671524720000122
wherein, Δ I is a current change value, Δ α is an angle change value, r is a radius of an arc where the resistance wire 2 is located, ρ represents the resistivity of the resistance and is determined by its own properties, L represents the length of the resistance, and S represents the cross-sectional area of the resistance;
the first stepping motor 8 drives the position control screw rod 9 to rotate, so that the connecting block 35 and the sliding frame 10 are accurately controlled to move, the relative positions of the sliding frame 10 and the control transverse frame 5 are changed, the sliding frame 10 drives the connecting frame 11 to move, the positions of the connecting frame 11 and the sliding groove 12 are changed, and the connecting frame 11 drives the printing spray head 32 and the stabilizing slide block 33 to move along the inner wall of the sliding groove 12;
the electric cylinder 23 controls the base 15 to move in the vertical direction inside the working groove 22, the base 15 drives the stabilizing wheel 36 to move along the surface of the stabilizing slideway 28, so that the stabilizing wheel 36 and the stabilizing slideway 28 enable the base 15 to stably move up and down, the base 15 drives the supporting platform 25 to move in the vertical direction, the supporting platform 25 drives the printing table 29 to move in the vertical direction, and therefore the position adjustment of the printing table 29 in the vertical direction inside the working groove 22 is completed;
the servo motor 6 drives the control screw rod 7 to rotate, the control screw rod 7 accurately controls the supporting platform 25 to move along the central axis direction of the control screw rod 7, the supporting platform 25 drives the moving wheel 26 to roll along the inner wall of the slide way 16, the moving wheel 26 is matched with the slide way 16 to enable the supporting platform 25 to drive the printing table 29 to stably move on the inner side of the slide way groove 27, and the control screw rod 7 can also control the supporting platform 25 to move to the top of the receiving table 17, so that products are conveyed out of the device along with the printing table 29;
the printing nozzle 32 is controlled to move in the sliding groove 12 and the rotating of the rotating disc 4 is controlled to control the angle adjustment of the printing nozzle 32, so that the relative position of the printing nozzle 32 and the printing table 29 is adjusted, the electric cylinder 23 controls and adjusts the heights of the base 15, the supporting platform 25 and the printing table 29, the printing table 29 adjusts the height of a product being printed, and on the basis, the position of the printing nozzle 32 and the height of the product being printed are adjusted, so that a final product is printed.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The arc 3D printing equipment for the aluminum alloy structural part comprises an equipment body (1) and is characterized in that a working groove (22) is formed in the equipment body (1), and a turntable (4) is arranged at the top of the working groove (22);
a support is arranged at one end of the top of the rotary table (4), a control cross frame (5) is fixedly connected to the top of the support, a sliding frame (10) is arranged at the top of the control cross frame (5), a connecting frame (11) is arranged on one side of the sliding frame (10), a printing spray head (32) is arranged at the bottom of the connecting frame (11), and a stabilizing slide block (33) is arranged on the outer side of the middle of the printing spray head (32);
a sliding groove (12) is formed in one end of the rotary table (4), and the inner wall of the sliding groove (12) is connected with the outer side of the stabilizing sliding block (33) in a sliding mode;
the outer side of the turntable (4) is provided with a rotating mechanism, the bottom of the working groove (22) is provided with an object bearing mechanism, and the bottom of the control cross frame (5) is connected with the outer side of the top of the machine body (1) in a sliding mode.
2. The arc 3D printing apparatus of an aluminum alloy structure of claim 1, wherein: the rotating mechanism comprises a friction ring (30), a rotating cavity (18), a rotating roller (19), a friction layer (20), a second stepping motor (21) and a stable rotating groove (31), the second stepping motor (21) is arranged on the inner side of the top of the machine body (1), and the rotating roller (19) is arranged at the power output end of the second stepping motor (21);
work groove (22) top inner wall seted up and stablize rotation groove (31), stabilize rotation chamber (18) seted up to one side of groove (31) inner wall, the top swing joint of the inboard of rotating chamber (18) and live-rollers (19), the outside of live-rollers (19) is provided with frictional layer (20), the outside of carousel (4) is provided with friction ring (30), the outside of friction ring (30) and the outside friction connection of frictional layer (20).
3. The arc 3D printing apparatus for aluminum alloy structural members of claim 2, wherein: the inner wall of the stable rotating groove (31) is movably connected with the outer side of the rotating disc (4).
4. The arc 3D printing apparatus of an aluminum alloy structure of claim 2, wherein: the outer side of the top and the outer side of the bottom of the rotary table (4) are respectively provided with a closed ring (3), and one side of the closed ring (3) is movably connected with the inner wall of the top of the working groove (22).
5. The arc 3D printing apparatus of an aluminum alloy structure of claim 1, wherein: the inner wall of sliding tray (12) has seted up the spacing groove, the outside of stabilizing slide block (33) is provided with the stopper, the inner wall of spacing groove and the outside sliding connection of stopper.
6. The arc 3D printing apparatus for aluminum alloy structural members as recited in claim 1, wherein: the object bearing mechanism comprises a base (15), a supporting platform (25), a collecting shell (14), a printing table (29) and electric cylinders (23), wherein a plurality of electric cylinders (23) are uniformly arranged on the inner side of the bottom of the machine body (1), the base (15) is arranged at the bottom of the working groove (22), and the tops of the electric cylinders (23) are fixedly connected with the bottom of the base (15);
a slide way groove (27) is formed in the top of the base (15), a plurality of slide ways (16) are arranged on the inner bottom wall of the slide way groove (27), a supporting platform (25) is connected to the inner wall of the slide way groove (27) in a sliding mode, a plurality of moving wheels (26) are arranged at the bottom of the supporting platform (25), and the inner wall of each slide way (16) is movably connected with the outer side of each moving wheel (26);
the inboard of base (15) one end is provided with servo motor (6), the power take off end fixedly connected with control lead screw (7) of servo motor (6), the outside of control lead screw (7) and the inboard threaded connection of supporting platform (25), the outside at supporting platform (25) top is provided with collects shell (14), the top of supporting platform (25) is provided with printing table (29), one side of organism (1) is provided with and holds platform (17), the outside swing joint of one side and collection shell (14) of holding platform (17).
7. The arc 3D printing apparatus for aluminum alloy structural parts according to claim 6, wherein: the bottom of base (15) evenly is provided with a plurality of buffer spring (24), the bottom of buffer spring (24) all with the interior diapire fixed connection of work groove (22).
8. The arc 3D printing apparatus of an aluminum alloy structural member of claim 7, wherein: work the bottom of groove (22) inner wall and seted up stable slide (28), the both sides of base (15) are provided with a plurality of stabilizing wheel (36) respectively, the outside of stabilizing wheel (36) and the inner wall swing joint of stable slide (28).
9. The arc 3D printing apparatus of an aluminum alloy structure of claim 1, wherein: the position detection mechanism comprises a resistance wire (2), a connecting contact (13), a power supply (37), a current detection module (38) and a connecting lead (39), the resistance wire (2) is arranged at the top of the machine body (1), the connecting contact (13) is arranged at the bottom of one end of the control cross frame (5), the bottom of the connecting contact (13) is movably connected with the top of the resistance wire (2), the resistance wire (2) is a notched circular resistor, the resistance wire (2) is a resistor with uniform resistivity distribution, the power supply (37), the current detection module (38) and the connecting lead (39) are arranged on the inner side of the control cross frame (5), the connecting contact (13) is connected with the power supply (37), the power supply (37) is connected with the current detection module (38), and the current detection module (38) are connected with the resistance wire (2) in series through the connecting lead (39), the power supply (37) is a battery with the voltage of 36V, and the type of the current detection module (38) is AHKC-EKA.
10. The arc 3D printing apparatus for aluminum alloy structural members as recited in claim 1, wherein: the inboard of control crossbearer (5) one end is provided with step motor (8), the power take off end of step motor (8) is provided with position control lead screw (9), the outside of position control lead screw (9) and the inboard threaded connection of connecting block (35), position control lead screw (9) are located the inboard of removing spout (34), removal spout (34) have been seted up to one side of control crossbearer (5), one side of carriage (10) is provided with connecting block (35), the inner wall of removing spout (34) and the outside sliding connection of connecting block (35), the inboard of connecting block (35) and the outside threaded connection of position control lead screw (9).
CN202210609523.0A 2022-05-31 2022-05-31 Arc 3D printing equipment of aluminum alloy structural member Active CN114769594B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2979850A2 (en) * 2014-07-29 2016-02-03 Roland DG Corporation Three-dimensional printing device
CN107718542A (en) * 2017-10-09 2018-02-23 佛山蓝途科技有限公司 Appearance 3D printer based on bar shaped base material
WO2019162759A2 (en) * 2018-02-23 2019-08-29 Eli Kritchman 3d printing of inorganic material in round inkjet printing configuration
CN111016167A (en) * 2019-12-23 2020-04-17 浙江大学 Additive manufacturing equipment with high-response parallel leveling mechanism and leveling method
US20200282659A1 (en) * 2017-08-10 2020-09-10 Shanghai Mi Fang Electronics Ltd. 3d printer
CN212097552U (en) * 2020-05-08 2020-12-08 长春工业大学人文信息学院 Colored 3D printer of manipulator formula
CA3121778A1 (en) * 2020-06-10 2021-12-10 Torem Labs Tooling system with a system tool displaceable along a closed path

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2979850A2 (en) * 2014-07-29 2016-02-03 Roland DG Corporation Three-dimensional printing device
US20200282659A1 (en) * 2017-08-10 2020-09-10 Shanghai Mi Fang Electronics Ltd. 3d printer
CN107718542A (en) * 2017-10-09 2018-02-23 佛山蓝途科技有限公司 Appearance 3D printer based on bar shaped base material
WO2019162759A2 (en) * 2018-02-23 2019-08-29 Eli Kritchman 3d printing of inorganic material in round inkjet printing configuration
CN111016167A (en) * 2019-12-23 2020-04-17 浙江大学 Additive manufacturing equipment with high-response parallel leveling mechanism and leveling method
CN212097552U (en) * 2020-05-08 2020-12-08 长春工业大学人文信息学院 Colored 3D printer of manipulator formula
CA3121778A1 (en) * 2020-06-10 2021-12-10 Torem Labs Tooling system with a system tool displaceable along a closed path

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